Alwaght- At least 20 people have been killed and more than 50 were injured after a huge blast hit Afghanistan's capital city Kabul.
The explosion, which was followed by a long gun battle, took place at vice presidential candidate Amrullah Saleh's office on Sunday.
The government issued a statement on Monday saying Saleh, who is the running mate of Afghan President Ashraf Ghani, had been slightly injured in the attack.
The statement added that government forces, in a six hour gun battle with the militants, had shot dead four of the assailants and saved the lives of over 150 civilians who had been caught up in the crossfire.
No group has claimed responsibility for the attack that came only hours after Ghani and Saleh, along with more than a dozen Afghan politicians, launched their two-month long election campaign.
The Taliban and ISIS terrorist groups are often the main perpetrators of frequent attacks of this kind in the country.
US-led foreign forces invaded Afghanistan and removed the Taliban regime, who had been ruling over the poverty-stricken country at the time, under the pretext of the global fight against terrorism in 2001.
US-led foreign troops have occupied the country ever since.
Recently, however, Washington has been negotiating with the Taliban to end the conflict.
The exit of foreign troops from Afghanistan is a condition set by the Taliban to extend the talks.
About 20,000 foreign troops, mostly Americans, are based in the country.
